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Information and Communication Technology System Maintenance (ICTSM)
DIODE RECTIFIER FILTER ZENER DIODE TRANSISTOR
Set 5
Set 5
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Q7066
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What is the meaning of first letter indicated in the transistor code number BC 107?
A
Germanium material used
B
Silicon material used
C
Antimony material used
D
Indium material used
Q7067
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Which electrical quantity controls the operation of the bipolar transistor device?
A
Energy
B
Current
C
Voltage
D
Frequency
Q7068
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Why transistors made of silicon is preferred over the germanium semiconductor material?
A
Complex design
B
Higher thermal stability
C
Requires complicated bias arrangement
D
Silicon transistor needs low cut-involtage
Q7069
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Why NPN type of transistors are preferred over the PNP type transistors?
A
NPN has lower switching speed
B
NPN has good bias stability
C
NPN has higher switching speed
D
Low operating voltage
Q7070
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Which type of transistors are required to amplify signals from the microphone / transducer?
A
Low power transistors
B
Medium power transistors
C
High power transistors
D
Epitaxial versa watt transistors
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